Underpinning construction scheme for Shanghai metro line 10 passing through pile foundation of bridge

This paper proposed the characteristics of the new development of Shanghai metro,and basing on the engineering of sheild tunnel of Shanghai metro line 10 passing through existing pile foundation of Shajinggang Bridge,proposed and studied on the key technical problem of foundation improvement and underpinning construction,at last gave preliminary solution scheme of underpinning construction for the engineering problem of shield tunnel passing through pile foundation of Shajinggang Bridge,and this must be of great significance in solving such engineering problems in a economics,time saving and reasonable way.